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Just had a measurer ask how to proceed w/measuring 5 miles of two track for a marathon. Do I go w/the prevailing sentiment here to use our measuring equipment and get on w/the job? Personally, I'm against measuring such a high % of a course along a surface of unknown quality and a path that could be equally vague. Thoughts of the board?
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Gene, I passed along your suggestion to the measurer.

I want to go on record as being opposed to measuring any non-paved surfaces that represent more than 10% of a race distance. We get into the 'integrity' of those off-road surfaces - rocks, sand, dips, loose soil, etc which can seriously compromise how accurate we are. I simply don't feel confident I'm measuring accurately on those surfaces. I recognize our method will still likely yield better measurement than pretty much any other method - but I still feel uneasy about soft surfaces.
Scott - if you set up a calibration course (I do 300-foot one-off cal courses for this), and use your non-paved calibration numbers for that portion of the course, you should have a very good measurement. If you only use your paved cal course numbers, your course will be long.

No problem with mixed-surface courses, as long as calibrations are done for both surfaces.

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